On September 11, 2001, in one of the deadliest terrorist attacks in history, terrorists crashed two hijacked commercial airliners into the World Trade Center in New York, bringing down the twin 110-storey towers in a devastating assault on the United States.Also read | 9/11: How The Hindu covered the terror attacks on USAThe attacks claimed nearly 3,000 lives and reduced New York’s landmark Twin Towers to rubble. Twenty-five years after the attacks, the memorial at Ground Zero continues to draw visitors from around the world, who pause to read the nearly 3,000 names engraved on the parapets surrounding two reflecting pools.The coordinated attacks also included the crash of American Airlines Flight 77 into the Pentagon in Washington, D.C. Another hijacked aircraft, United Airlines Flight 93, crashed in rural Pennsylvania after passengers attempted to overpower the hijackers and regain control of the plane.Also read | Ground zero — A selfie stop for some, a cemetery for othersTwin Towers’ memorialThe collapse of the towers left a void in both the city and the national psyche. The Memorial, Museum and Memorial Glade that now occupy the site stand as symbols of remembrance and resilience. An international design competition was held to select the architect for the Ground Zero memorial.Built in phases, the memorial complex took several years to complete. On the 10th anniversary of the attacks on September 11, 2011, the Memorial pools and plaza were dedicated to the victims’ families by the then U.S. President Barack Obama.